Cooper WW, K Tone, H Takamori and T Sueyoshi (1994). “Data Envelopment Analysis: Survey and Interpretations-Part I.” Operations Research: Communications of Operations Research Society of Japan 39(8): 419-425.
Cooper WW, K Tone, H Takamori and T Sueyoshi (1994). “Data Envelopment Analysis: Survey and Interpretations-Part I.” Operations Research: Communications of Operations Research Society of Japan 39(8): 419-425.